CN104631180B - A kind of preparation method and its application method of useless wet strength paper dissociation inorganic agent - Google Patents
A kind of preparation method and its application method of useless wet strength paper dissociation inorganic agent Download PDFInfo
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- CN104631180B CN104631180B CN201510022593.6A CN201510022593A CN104631180B CN 104631180 B CN104631180 B CN 104631180B CN 201510022593 A CN201510022593 A CN 201510022593A CN 104631180 B CN104631180 B CN 104631180B
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- wet strength
- dissociation
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
- D21C5/022—Chemicals therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Abstract
The invention discloses a kind of preparation method of useless wet strength paper dissociation inorganic agent, it is characterised in that the preparation method comprises the following steps：（1）Sodium dithionite that percentage by weight is 30%~50% and 50%~70% industrial anhydrous sodium sulfate are mixed；（2）B component is prepared into after dry packing；（3）By percentage by weight for 0.1%~0.5% sodium tripolyphosphate, 0.1%~1.5% solvent, 0.1%~0.5% neopelex and the saturating agent of 0.1%~0.5% Seepage are mixed；（4）Component A is prepared into after mixing filling；（5）Component A and B component are prepared by mixing into useless wet strength paper dissociation inorganic agent.The present invention can greatly improve the dissociation yield of waste paper.
Description
Technical field
The present invention relates to useless wet strength paper dissociation inorganic agent technical field, at a kind of useless wet strength paper dissociation
Manage the preparation method and its application method of agent.
Background technology
In paper industry production process, it is various to mix the paper grades species such as wet strength agent, containing in the paper such as wet strength mixed with
Substantial amounts of industrial chemicals and wet strength agent.But containing height when up to now, being utilized without the strong waste paper after-treatment of industrial dampness elimination both at home and abroad
Mature experience and relevant report that wet strength agent waste paper will be completely dissociated.How to avoid adding originally the good fiber quality raw material of wet strength agent
When the paper being made is reused, by originals such as the product formula effect differences that handling process technical conditions and industrial chemicals are constituted
Thus make to reduce the present situation that fiber class produces low and middle-grade paper and cardboard during the secondary utilization of good fiber quality raw material, give full play to fibril
The potentiality of form are tieed up, is papermaking and related science technological staff one of technical barrier of tackling key problem jointly
To improve use value during China's wet-strength paper class waste paper secondary fibre recycling, in the such waste paper production process of solution
The technical barrier of wet strength agent is removed, we have been organized by pulping and papermaking process, the multi-specialized engineering technology such as papermaking fine chemical product
Personnel's research cooperation, from the chemical products such as kinds of surface activity, Seepage permeabilities, buffer, specialist additive composition compounding
New formula, and on the basis of repetition test compounding, carried out the simulation of technique for applying technical conditions and contrast test.By up to a hundred
After secondary small-sized simulated test, preliminary screening has gone out useless wet-strength paper inorganic agent product optimised process formula and technique for applying technology bar
The parameters such as part.Difficulty is have selected on this basis maximum, wet strength agent addition is most and most representational useless bank-note paper deinking
The paper for daily use class products such as high-grade napkin paper are produced afterwards, while high from the useless brown paper production of light red Australia for adding wet strength agent
Stronger Kraft paper, the high life paper for adding wet strength agent copies back production napkin paper.Tested by production application and achieve order
The effect of people's satisfaction, while have accumulated certain knowhow.
Dissociation treatment wet-strength paper class wastepaper as raw material re-using Current Status of R ＆ D is as follows at this stage both at home and abroad：Through wet strength agent
When paper after treatment is recycled, even if through prolonged immersion and being beaten, it is also difficult to fiber is fully dissociated, at this stage work
During industry metaplasia is produced, waste paper is reclaimed to recirculate and encounter great difficulty when utilizing.Dissociation treatment at this stage is containing useless wet both at home and abroad
The waste paper of strong stationery is still using the i.e. acid dissociation method of conventional method so far.The treatment waste paper that dissociated in acid medium can partly promote
Enter the decomposition of resin, therefore wet strong waste paper must be processed into paper pulp under higher temperature and lower ph.The paper pulp of the reuse is strong
Degree is very low, and general boiling has no dissociation to the fiber of wet strength paper.With the treated waste paper of Lauxite substantially
Under the conditions of 85 DEG C and pH value 4.5, could be by waste paper partial dissociation into fiber.After wet strength agent in waste paper is through curing, i.e. waste paper
When raw material is re-used, storage time is more long, and technical difficulty during dissociation treatment is bigger.And what melmac was treated
Waste paper must then dissociate compared with drastic conditions.Because wet strength agent product variety is more, its treated paper is recycled again
When technical difficulty and method be also slightly different.The treated waste paper method for the treatment of melmac mainly has two kinds at this stage.
A kind of is the method that aluminum sulfate is added using hydrabrusher, and the capital equipment of this method is a hydraulic pulping with cover
Machine, adds waste paper and water and adds a certain amount of aluminum sulfate wherein, steaming heating, and starts reamer under low pressure and carry out acutely
Treatment, the waste paper part dissociation that melamine can be thus treated.Another method be by after the pressurized boiling of waste paper again
Mechanical treatment is given, this method is that waste paper is fitted into common rotating autoclave, add substantial amounts of water（Liquor ratio is more than 4：1）
And a certain amount of aluminum sulfate is added, and boiling is carried out under pressure, the wet-strength paper of boiling carries out machine in beating equipment again
Tool treatment.The shortcoming one of acid system dissociation treatment is that the waste paper fibre rate of dissociation is low；Two is that operation is cumbersome and power consumption is big；Three
Be equipment used in process treatment process due to addition aluminum sulfate, it is big to digesting apparatus corrosiveness in acid condition,
The equipment that the whole technical process for being exclusively used in processing useless wet-strength paper class waste paper using the method is used must use corresponding
Anticorrosive, equipment investment expense is huge
The characteristics of paper industry is that wastepaper as raw material can be recycled, the attribute with recycling economy.Waste paper regenerated key
It is to make waste paper sufficiently cleaned up, string is separated with paper making additive
The paper grades for mixing the auxiliary agents such as wet strength agent are various, and the share of larger proportion is occupied in wastepaper as raw material, and useless
Wet-strength paper raw material sources enrich.The effect of wet strength agent is the insoluble covalent bond organic polymer and hemicellulose to form crosslinking
Network.Conventional wet strength agent mainly has urea formaldehyde resin（UF）Melamine resin（MF）Daiamid epoxy chlorine propylamine tree
Fat（PAE）With polyamide epichlorohydrin resin（PPE）Deng.Because such waste paper has larger wet strength during slurrying, between fiber not
Legibility scraps of paper material in dispersion, paper pulp is more, is difficult between fiber and fiber interweave with forming good network when paper pulp is manufactured paper with pulp again
Structure, paper grades are poor.The dissociating method of generally useless wet-strength paper is to add aluminum sulfate in acid condition, but the method can not have
Slurry is imitated into, dissociation effect is poor, thin small paper block is still present in paper pulp, and serious corrosion is brought to paper making equipment.
The content of the invention
The purpose of the present invention is that and provides a kind of preparation method and its application method of useless wet strength paper dissociation inorganic agent, it
The dissociation yield of waste paper can be greatly improved.
To achieve the above object, the preparation method of a kind of useless wet strength paper dissociation inorganic agent of the invention, the preparation side
Method comprises the following steps：（1）By sodium dithionite and 50%~70% industrial anhydrous sulphur that percentage by weight is 30%~50%
Sour sodium is mixed；
（2）B component is prepared into after dry packing；
（3）It is 0.1%~0.5% sodium tripolyphosphate, 0.1%~1.5% solvent, 0.1%~0.5% dodecane by percentage by weight
Base benzene sulfonic acid sodium salt and the saturating agent of 0.1%~0.5% Seepage are mixed；
（4）Component A is prepared into after mixing filling；
（5）Component A and B component are prepared by mixing into useless wet strength paper dissociation inorganic agent.
A kind of application method of useless wet strength paper dissociation inorganic agent, comprises the following steps：（1）The waste paper for taking certain part by weight is made
It is pending waste paper；
（2）Take step（1）The useless wet strength paper dissociation inorganic agent of the 0.5%~3.5% of weight is placed in equipment and adds water；
（3）By step（1）In the waste paper of 2/3 weight be placed in equipment to be heated and stirred and prepare slurry；
（4）The waste paper of remaining 1/3 weight is added and the lasting heating stirring that adds water.
As the preferred of above-mentioned technical proposal, the step（2）In equipment be high density hydraulic pulper.
As the preferred of above-mentioned technical proposal, the step（3）The slurry concentration of preparation is more than 12%.
As the preferred of above-mentioned technical proposal, the step（3）And step（4）In course of reaction pH value control 12~
13。
As the preferred of above-mentioned technical proposal, the step（3）And step（4）Temperature control is 40~95 in course of reaction
℃。
As the preferred of above-mentioned technical proposal, the step（3）And step（4）Reaction time be 15~90 minutes.
The beneficial effects of the present invention are：The present invention is applied in the pulping process of enterprises in pulp and paper industry, is containing high humidity
After the waste paper of the chemical residues such as strong agent is added during recycling, string and wet strength agent when reaching waste paper cycling and reutilization
Deng the purpose that chemical residue is kept completely separate, the effect of original string is given full play to, solve domestic paper industry at this stage
String can not will be completely dissociated and reduce fiber when being recycled with high-quality long fibered raw material during the waste paper regenerated utilization of class containing wet-strength paper
Class produces the present situation of low and middle-grade paper and cardboard, gives full play to the potentiality of former string, has saved the string of preciousness
Resource, reduces environmental pollution, is conducive to environmental protection.
Specific embodiment：
The preferred embodiment for being only to embody the principle of the invention as described below, is not intended to limit the scope of the present invention
Embodiment 1：A kind of preparation method of useless wet strength paper dissociation inorganic agent, it is characterised in that the preparation method includes
Following steps：（1）Sodium dithionite that percentage by weight is 30% and 69.6% industrial anhydrous sodium sulfate are mixed；
（2）B component is prepared into after dry packing；
（3）It is 0.1% sodium tripolyphosphate, 0.1% solvent, 0.1 neopelex and 0.1% Seepage by percentage by weight
Saturating agent is mixed；
（4）Component A is prepared into after mixing filling；
（5）Component A and B component are prepared by mixing into useless wet strength paper dissociation inorganic agent.
The application method of useless wet strength paper dissociation inorganic agent obtained above, comprises the following steps：（1）Take certain part by weight
Waste and old banknote is used as pending waste paper；
（2）Take step（1）The useless wet strength paper dissociation inorganic agent of the 0.5% of weight is placed in equipment and adds water；
（3）By step（1）In the waste paper of 2/3 weight be placed in equipment to be heated and stirred and prepare slurry；
（4）The waste paper of remaining 1/3 weight is added and the lasting heating stirring that adds water, treats to be put after whole waste paper dissociation
Material.
In the present embodiment, step（2）In equipment be high density hydraulic pulper.
In the present embodiment, step（3）The slurry concentration of preparation is more than 12%.
In the present embodiment, step（3）And step（4）PH value control is 12 in course of reaction.
In the present embodiment, step（3）And step（4）PH value control is in 12 steps in course of reaction（3）And step（4）Reaction
During temperature control 40.
In the present embodiment, step（3）And step（4）PH value control is in 12 steps in course of reaction（3）And step（4）It is anti-
It is 15 minutes between seasonable.
Embodiment 2：A kind of preparation method of useless wet strength paper dissociation inorganic agent, the preparation method comprises the following steps：（1）
Sodium dithionite that percentage by weight is 30% and 67% industrial anhydrous sodium sulfate are mixed；
（2）B component is prepared into after dry packing；
（3）It is 0.5% sodium tripolyphosphate, 1.5% solvent, 0.5% neopelex and 0.5% Seepage by percentage by weight
Saturating agent is mixed；
（4）Component A is prepared into after mixing filling；
（5）Component A and B component are prepared by mixing into useless wet strength paper dissociation inorganic agent.
The application method of the above-mentioned useless wet strength paper dissociation inorganic agent for preparing, comprises the following steps：（1）Take constant weight
The waste and old map paper of part is used as pending waste paper；
（2）Take step（1）The useless wet strength paper dissociation inorganic agent of the 3.5% of weight is placed in equipment and adds water；
（3）By step（1）In the waste paper of 2/3 weight be placed in equipment to be heated and stirred and prepare slurry；
（4）The waste paper of remaining 1/3 weight is added and the lasting heating stirring that adds water, treats to be put after whole waste paper dissociation
Material..
In the present embodiment, step（2）In equipment be high density hydraulic pulper.
In the present embodiment, step（3）The slurry concentration of preparation is more than 12%.
In the present embodiment, step（3）And step（4）PH value control is 13 in course of reaction.
In the present embodiment, step（3）And step（4）Temperature control is at 95 DEG C in course of reaction.
In the present embodiment, step（3）And step（4）Reaction time be 90 minutes.
Embodiment 3：A kind of preparation method of useless wet strength paper dissociation inorganic agent, it is characterised in that the preparation method includes
Following steps：（1）Sodium dithionite that percentage by weight is 40% and 58.1% industrial anhydrous sodium sulfate are mixed；
（2）B component is prepared into after dry packing；
（3）It is that 0.3% sodium tripolyphosphate, 1% solvent, 0.3% neopelex and 0.3% Seepage are saturating by percentage by weight
Agent is mixed；
（4）Component A is prepared into after mixing filling；
（5）Component A and B component are prepared by mixing into useless wet strength paper dissociation inorganic agent.
The application method of the above-mentioned useless wet strength paper dissociation inorganic agent for preparing, comprises the following steps：（1）Take constant weight
The dixie cup waste paper of part is used as pending waste paper；
（2）Take step（1）The useless wet strength paper dissociation inorganic agent of the 2% of weight is placed in equipment and adds water；
（3）By step（1）In the waste paper of 2/3 weight be placed in equipment to be heated and stirred and prepare slurry；
（4）The waste paper of remaining 1/3 weight is added and the lasting heating stirring that adds water, treats to be put after whole waste paper dissociation
Material.
In the present embodiment, step（2）In equipment be high density hydraulic pulper.
In the present embodiment, step（3）The slurry concentration of preparation is more than 12%.
In the present embodiment, step（3）And step（4）PH value control is 12 in course of reaction.
In the present embodiment, step（3）And step（4）Temperature control is at 50 DEG C in course of reaction.
In the present embodiment, step（3）And step（4）Reaction time be 50 minutes.
Embodiment 4：A kind of preparation method of useless wet strength paper dissociation inorganic agent, it is characterised in that the preparation method includes
Following steps：（1）Sodium dithionite that percentage by weight is 35% and 63.8% industrial anhydrous sodium sulfate are mixed；
（2）B component is prepared into after dry packing；
（3）It is 0.1% sodium tripolyphosphate, 0.1% solvent, 0.5% neopelex and 0.5% Seepage by percentage by weight
Saturating agent is mixed；
（4）Component A is prepared into after mixing filling；
（5）Component A and B component are prepared by mixing into useless wet strength paper dissociation inorganic agent.
The application method of the useless wet strength paper dissociation inorganic agent of above-mentioned preparation, comprises the following steps：（1）Take certain part by weight
Waste and old credits paper is used as pending waste paper；
（2）Take step（1）The useless wet strength paper dissociation inorganic agent of the 2% of weight is placed in equipment and adds water；
（3）By step（1）In the waste paper of 2/3 weight be placed in equipment to be heated and stirred and prepare slurry；
（4）The waste paper of remaining 1/3 weight is added and the lasting heating stirring that adds water, treats to be put after whole waste paper dissociation
Material.
In the present embodiment, step（2）In equipment be high density hydraulic pulper.
In the present embodiment, the step（3）The slurry concentration of preparation is more than 12%.
In the present embodiment, the step（3）And step（4）PH value control 13 in course of reaction.
In the present embodiment, step（3）And step（4）Temperature control is at 8095 DEG C in course of reaction.
In the present embodiment, step（3）And step（4）Reaction time be 45 minutes.
Embodiment 5：A kind of preparation method of useless wet strength paper dissociation inorganic agent, it is characterised in that the preparation method includes
Following steps：（1）Sodium dithionite that percentage by weight is 39% and 60% industrial anhydrous sodium sulfate are mixed；
（2）B component is prepared into after dry packing；
（3）It is 0.2% sodium tripolyphosphate, 0.2% solvent, 0.3% neopelex and 0.3% Seepage by percentage by weight
Saturating agent is mixed；
（4）Component A is prepared into after mixing filling；
（5）Component A and B component are prepared by mixing into useless wet strength paper dissociation inorganic agent.
The application method of the above-mentioned useless wet strength paper dissociation inorganic agent for preparing, comprises the following steps：（1）Take constant weight
The waste and old kraft wrapping of part is used as pending waste paper；
（2）Take step（1）The useless wet strength paper dissociation inorganic agent of the 3% of weight is placed in equipment and adds water；
（3）By step（1）In the waste paper of 2/3 weight be placed in equipment to be heated and stirred and prepare slurry；
（4）The waste paper of remaining 1/3 weight is added and the lasting heating stirring that adds water, treats to be put after whole waste paper dissociation
Material.
In the present embodiment, step（2）In equipment be high density hydraulic pulper.
In the present embodiment, step（3）The slurry concentration of preparation is more than 12%.
In the present embodiment, step（3）And step（4）PH value control is 12.5 in course of reaction.
In the present embodiment, step（3）And step（4）Temperature control is at 75 DEG C in course of reaction.
In the present embodiment, step（3）And step（4）Reaction time be 65 minutes.
Embodiment 6：A kind of preparation method of useless wet strength paper dissociation inorganic agent, it is characterised in that the preparation method includes
Following steps：（1）Sodium dithionite that percentage by weight is 42.9% and 55% industrial anhydrous sodium sulfate are mixed；
（2）B component is prepared into after dry packing；
（3）It is that 0.5% sodium tripolyphosphate, 1% solvent, 0.5% neopelex and 0.1% Seepage are saturating by percentage by weight
Agent is mixed；
（4）Component A is prepared into after mixing filling；
（5）Component A and B component are prepared by mixing into useless wet strength paper dissociation inorganic agent.
The application method of the useless wet strength paper dissociation inorganic agent of above-mentioned preparation, comprises the following steps：（1）Take certain part by weight
Useless milk box is used as pending waste paper；
（2）Take step（1）The useless wet strength paper dissociation inorganic agent of the 2.8% of weight is placed in equipment and adds water；
（3）By step（1）In the waste paper of 2/3 weight be placed in equipment to be heated and stirred and prepare slurry；
（4）The waste paper of remaining 1/3 weight is added and the lasting heating stirring that adds water, treats to be put after whole waste paper dissociation
Material.
In the present embodiment, step（2）In equipment be high density hydraulic pulper.
In the present embodiment, step（3）The slurry concentration of preparation is more than 12%.
In the present embodiment, step（3）And step（4）PH value control is 12 in course of reaction.
In the present embodiment, step（3）And step（4）Temperature control is at 85 DEG C in course of reaction.
In the present embodiment, step（3）And step（4）Reaction time be 70 minutes.
In above-mentioned each embodiment, slurry concentration is higher more more than 12% and in the case where paper pulp uniform circulation is ensured
It is good, easily rubbed between the dense more high microsteping of slurry, be conducive to waste paper to discongest separation.
The useless wet strength paper dissociation inorganic agent product physical and chemical index of the various embodiments described above is as follows：
| Project name | Index |
| Iron content %≤ | 0.02 |
| Water insoluble matter content %≤ | 0.3 |
| PH value（1% aqueous solution）% ≤ | 7.0~8.5 |
| Moisture %≤ | 10.0 |
| Surface-active contents %≤ | 2.5 |
| Industrial anhydrous sodium sulfate %≤ | 50.0 |
| Sodium dithionite≤ | 50.0 |
The waste paper dissociation yield of the various embodiments described above：
| Embodiment | Waste paper dissociation yield % |
| Embodiment 1 | 98 |
| Embodiment 2 | 98 |
| Embodiment 3 | 98.5 |
| Embodiment 4 | 98.5 |
| Embodiment 5 | 98.6 |
| Embodiment 6 | 98.5 |
The present invention is applied in the pulping process of enterprises in pulp and paper industry, in the waste paper containing chemical residues such as wet strength agents high
After being added during recycling, the chemical residue such as string and wet strength agent is kept completely separate when reaching waste paper cycling and reutilization
Purpose, gives full play to the effect of original string, solves the domestic paper industry waste paper regenerated utilization of class containing wet-strength paper at this stage
When string can not will be completely dissociated when being recycled with high-quality long fibered raw material reduce fiber class produce low and middle-grade paper and paper
The present situation of plate, gives full play to the potentiality of former string, has saved the string resource of preciousness, reduces environmental pollution, has
Beneficial to environmental protection.
Specific embodiment described herein is only to the spiritual explanation for example of the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from spirit of the invention or surmount scope defined in appended claims.
Claims (7)
1. a kind of preparation method of useless wet strength paper dissociation inorganic agent, it is characterised in that the preparation method comprises the following steps：
（1）Sodium dithionite that percentage by weight is 30%~50% and 50%~70% industrial anhydrous sodium sulfate are mixed；
（2）B component is prepared into after dry packing；
（3）It is 0.1%~0.5% sodium tripolyphosphate, 0.1%~1.5% solvent, 0.1%~0.5% detergent alkylate by percentage by weight
Sodium sulfonate and the saturating agent of 0.1%~0.5% Seepage are mixed；
（4）Component A is prepared into after mixing filling；
（5）Component A and B component are prepared by mixing into useless wet strength paper dissociation inorganic agent.
2. the application method of useless wet strength paper dissociation inorganic agent prepared by a kind of claim 1, it is characterised in that including following step
Suddenly：（1）The waste paper of certain part by weight is taken as pending waste paper；
（2）Take step（1）The useless wet strength paper dissociation inorganic agent of the 0.5%~3.5% of weight is placed in equipment and adds water；
（3）By step（1）In the waste paper of 2/3 weight be placed in equipment to be heated and stirred and prepare slurry；
（4）The waste paper of remaining 1/3 weight is added and the lasting heating stirring that adds water.
3. the application method of useless wet strength paper dissociation inorganic agent according to claim 2, it is characterised in that the step（2）
In equipment be high density hydraulic pulper.
4. the application method of the useless wet strength paper dissociation inorganic agent according to Claims 2 or 3, it is characterised in that the step
（3）The slurry concentration of preparation is more than 12%.
5. the application method of useless wet strength paper dissociation inorganic agent according to claim 4, it is characterised in that the step（3）
And step（4）PH value control is 12~13 in course of reaction.
6. the application method of useless wet strength paper dissociation inorganic agent according to claim 5, it is characterised in that the step（3）
And step（4）Temperature control is at 40~95 DEG C in course of reaction.
7. the application method of useless wet strength paper dissociation inorganic agent according to claim 6, it is characterised in that the step（3）
And step（4）Reaction time be 15~90 minutes.
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| CN106337311A (en) * | 2015-07-11 | 2017-01-18 | 陈福堂 | Extraordinary wet-strength paper processing auxiliary agent and application method thereof |
| CN108252145B (en) * | 2017-12-12 | 2020-02-21 | 江西省赣友高科实业有限公司 | Chemical residue remover for waste paper, application and using method |
| CN115976867A (en) * | 2023-01-11 | 2023-04-18 | 广东华凯科技股份有限公司 | Composition capable of quickly dissociating wet strength paper and preparation method and application thereof |
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| CN101294360A (en) * | 2008-04-23 | 2008-10-29 | 山东太阳纸业股份有限公司 | Dry, wet strength paper dissociation agent and degradation technique thereof |
| CN102242510A (en) * | 2011-06-30 | 2011-11-16 | 德州泰鼎新材料科技有限公司 | Wet strength waste paper processing method |
| CN103898791A (en) * | 2012-12-25 | 2014-07-02 | 朱勇强 | Wet strength waste paper repulping process |
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| JP4809585B2 (en) * | 2004-01-23 | 2011-11-09 | 大王製紙株式会社 | Method for producing waste paper pulp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294360A (en) * | 2008-04-23 | 2008-10-29 | 山东太阳纸业股份有限公司 | Dry, wet strength paper dissociation agent and degradation technique thereof |
| CN102242510A (en) * | 2011-06-30 | 2011-11-16 | 德州泰鼎新材料科技有限公司 | Wet strength waste paper processing method |
| CN103898791A (en) * | 2012-12-25 | 2014-07-02 | 朱勇强 | Wet strength waste paper repulping process |
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| CN104631180A (en) | 2015-05-20 |
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